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· 2 min read
Hreniuc Cristian-Alexandru

Official docker image for postgresql.

Official docker image for pgadmin4.

Docker compose file

The docker compose file has been taken from here.

Environments

This Compose file contains the following environment variables:

  • POSTGRES_USER the default value is postgres
  • POSTGRES_PASSWORD the default value is changeme
  • PGADMIN_PORT the default value is 5050
  • PGADMIN_DEFAULT_EMAIL the default value is [email protected]
  • PGADMIN_DEFAULT_PASSWORD the default value is admin
version: "3.5"

services:
postgres:
container_name: postgres_container
image: postgres
environment:
POSTGRES_USER: ${POSTGRES_USER:-postgres}
POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
PGDATA: /data/postgres
volumes:
- postgres:/data/postgres
ports:
- "5432:5432"
networks:
- postgres
restart: unless-stopped

pgadmin:
container_name: pgadmin_container
image: dpage/pgadmin4:6.13
environment:
PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL:-[email protected]}
PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD:-admin}
PGADMIN_CONFIG_SERVER_MODE: "False"
volumes:
- pgadmin:/var/lib/pgadmin

ports:
- "${PGADMIN_PORT:-5050}:80"
networks:
- postgres
restart: unless-stopped

networks:
postgres:
driver: bridge

volumes:
postgres:
pgadmin:

Start services

docker compose up -d

Access to postgres:

  • localhost:5432
  • Username: postgres (as a default)
  • Password: changeme (as a default)

Access to PgAdmin:

  • URL: - http://localhost:5050
  • Username: [email protected] (as a default)
  • Password: admin (as a default)

Add a new server in PgAdmin:

  • Host name/address postgres_container
  • Port 5432
  • Username as POSTGRES_USER, by default: postgres
  • Password as POSTGRES_PASSWORD, by default changeme

Logging

There are no easy way to configure pgadmin log verbosity and it can be overwhelming at times. It is possible to disable pgadmin logging on the container level.

Add the following to pgadmin service in the docker-compose.yml:

logging:
driver: "none"

reference

Access between containers

They share a bridge network, to connect pgadmin to postgresql, you should use postgres_container as a dns in the pgadmin container.

Using the psql client from ubuntu

Install

sudo apt-get install postgresql-client

Connect to the postgresql

psql -p 5432 -h localhost -U postgres -W